Express Systems will be having an EARLY Closing Thursday, April 17, 2025, and CLOSED Friday, April 18, 2025, in observance of the Easter Holiday. We will resume regular business hours Monday, April 21st, 2025, at 9:00am EST. Wishing Everyone a Happy & Safe Holiday Weekend!
Standalone Media Converters, MCR Series Modular Media Converters, PSI-MOS Serial to Fiber Converters, PSM-ME Serial Repeaters/Isolators/Converters, SFP/XFP Optical Transceivers, Media Converter Accessories, and MCR Accessories.
PSI-MOS Serial to Fiber Converters transparently connect RS232, RS422 and RS485 devices to fiber optic cable. By transmitting data over optical fiber, these serial media converters provide an economical path to extend the reach of serial devices.